sun4i: Rename dram_clk_cfg to dram_clk_gate

The data sheet just calls it DRAM_CLK_REG, and on sun6i we've both a
dram_clk_cfg and dram_clk_gate, and the sun4i reg matches dram_clk_gate on
sun6i, so name it the same on sun4i.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun4i.c b/arch/arm/cpu/armv7/sunxi/dram_sun4i.c
index dc9fdb9..ec8aaa7 100644
--- a/arch/arm/cpu/armv7/sunxi/dram_sun4i.c
+++ b/arch/arm/cpu/armv7/sunxi/dram_sun4i.c
@@ -428,9 +428,9 @@
 #ifdef CONFIG_MACH_SUN4I
 	struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
 	if (on)
-		setbits_le32(&ccm->dram_clk_cfg, CCM_DRAM_CTRL_DCLK_OUT);
+		setbits_le32(&ccm->dram_clk_gate, CCM_DRAM_CTRL_DCLK_OUT);
 	else
-		clrbits_le32(&ccm->dram_clk_cfg, CCM_DRAM_CTRL_DCLK_OUT);
+		clrbits_le32(&ccm->dram_clk_gate, CCM_DRAM_CTRL_DCLK_OUT);
 #endif
 }